Vapor-stove



(No Model.)

J. M. PALMER.

VVAPR STOVE.

No. 328,605. Patented Oct. 20, 1885.

Inventor' aft-www nmoe Palmer.

` UNITED STATES PATENT OFFICE.

JAMES MONROE PALMER, OF CAMBRIDGE, MASSACHUSETTS.

VAPO R-STOVE.

SPECIFICATION forming part of Letters Patent No, 328.605I dated October 20I 1885.

Application tiled April 14, 1884. Serial No. 127,760. (No model.)

T0 all whom t may concern.-

Be it known that I, JAMES MONROE PAL- MER, of Cambridge, in the county of Middlesex, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in Apparatus for Vaporizing a Hydrocarbon and Mixing it with Air for the Purpose of Combustion; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figure 1 is a vertical section of a building with my improvement applied thereto. Fig. 2 is a vertical section of a burner of such apparatus.

The nature of my invention is dened in the claim hereinafter presented.

In Fig. l of such drawings, A represents the building having three stories, a, b, and o, and a cellar, d. In the said cellar there is placed a closed reservoir or tank, B, for holding gasoline, such tank being provided with an air-forcing pump, C, which, as shown, is located in the rst story and communicates with the tank by a pipe, d, such pipe being for forcing air into and condensing it wi-thin the tank and above its charge E ot' gasoline. From and opening out ofthe top of such tank there is extended a series of pipes, g, each of them being led therefrom to the receiving-conduit L of a heating apparatus, D, E', or F, or that of a gas-lighting burner, G, located in some one or more of the stories of the building, there being to the pipe or to the conduit h, so as to interrupt communication of the latter with such pipe, a stop-cock, t. The said receiving-conduit may be supposed to be provided wth one or more suitable burners opening out of it, especially of the kind shown in Fig. 2, and hereinafter described, which is what may be termed an improved Bunsen burner,77 or one for intermixing air and the vapors of a hydrocarbon and burning the mixture for heating purposes.

Besides the series of pipes g, there is to the tank another series, f, each pipe of which eX- tends down within the tank nearly to its bottom, and from the top of the tank is continued to and opens into the duct h in advance of the stop-cock z' of the pipe g, and there is in the duct 7L, and in advance of the entrance of the pipe j' into it, another stop-cock, k.

The heating apparatus E' is shown as placed immediately under a boiler, I.

Each burner of each heating apparatus of the two stories a and b may be supposed to be constructed as represented in section in Fig. 2, its stem Z above the plug m of its stop-cock terminating in a jet, n, with a cup, o, encompassing such jet, and opening into a mouthpiece, p, for discharge of the mixture of air and gasoline-vapor in numerous jets. There are holes q in the sides of the cup o, such holes being for supplying air to the cup. On letting into the cup a little of the gasoline and setting it on iire the burner may be heated, so as to cause to be vaporized the gasoline that may be discharged from the j et n.

Vithin the stem l of the burner is a packing, s, of asbestus or some other suitable absorbent material, through which the gasoline passes to the stop-cock, and thence to the jet n. Furthermore, surrounding the stem Zis a cup, t, from which a pipe, u, is led into the cellar, and there provided with an S-trap, o, and enters a waste-receiving cistern or vessel, w.

In the operation of the apparatus the gasoline or hydrocarbon Within the cistern or tank B will, on the cock lo of any of the pipes h being opened, be driven by the condensed air into the burner or burners of such pipe, and may be Vaporized and burned by such burner or burners. By closing the cock k of such pipe and opening the cock t' of the returnpipe g the gasoline elevated in the pipef will at once descend or fall back from the pipe f into the tank B. Now, as the pipe f above the gasoline-tank will be charged with air after the gasoline may have run down within such pipe, such air, on the stop-cock ofthe bur-ner being opened and the stop-cock of the air-pipe g being closed, will be driven up into and through the burner. In its passage through the packing s such air will be carbureted by the gasoline retained in such packing, and therefore will from the jet n issue charged with the vapors of the hydrocarbon, and at once may be inflamed. Thus by means of the packing the said air will be put in a condition to be burned before it can escape into the apartment and infuse therein any noxious or dangerous vapor or disagreeable efliuvium.

Any hydrocarbon liquid that may escape from the cup o or upper part of the burner IOC and flow down upon the outer surface of the stem Zwill be intercepted by the cup t, and by the pipe u will be conveyed to and through the S-trap and into the Waste-receiver w.

From the above it will be seen that I have attached to such burner or series of burners means for causing its gasoline-supplying pipe to be subsequently emptied of the hydrocarbon Within it after the cock of such pipe may have been closed, snch means being the pipe g, having the stop-cock t', and extended to and opening out of the upper part of the closed tank B, the object of so emptying the pipe being to increase the safety of the apparatus by preventing leakage of the hydrocarbon vapor from such pipe or from the burner. It will further be seen that there are means of carbureting the air that will be driven from the pipe f by the return or upward iiow of the hydrocarbon within it, such means of carbureting the air being the packing s more or less charged with the hydrocarbon.

I am aware of the United States patents to J. S. Hull', Nos. 283,246 and 241,219, and I disclaim anything therein. In the latter patent is described a device for effecting a preliminary heating of the burner before the oil lows to it. In such patent are shown tanks for the oil, for compressed air, and for gasoline. Pipes connect these several tanks, there being one each side of a connecting-pipe, where it joins another, a cock like in my device. Compressed air passes from the air-tank to the gasoline-tank, is carbureted, and the gas passes to the burner and is illuminated, heating the burner when the oil is turned on. My device differs from the above, and the difference is set forth in the claim.

I therefore claimv The tank B and its air-compressing apparatns, in combination with the gasoline-supply pipe f, leading from the bottom of the tank, the return-pipe g, leading from the top of the tank, a burner for the gasoline, and the pipe l1, having the cocks and k, the pipe f leading into pipe h between the said cocks, and the pipe g into pipe h beyond both cocks `ou the side away from the burner, as and for the purpose set forth.

JAMES MONROE PALMER.

Witnesses:

R. H. EDDY, E. B. PRATT. 

